Cheerock Pack of 15 Piezo Disc, 27mm Piezo Discs Transducer with 3.94inch Leads, Acoustic Contact Microphone Piezo Pickup, Piezo Elements for Drum Triggers Microphone Trigger Element CBG Guitar

Cheap or affordable alternative to fixing your electronic drum pads. If you know how to disassemble your drum pads and have basic soldering skills, then this is an easy task. No need to have it fixed by an electronics expert. Even if you mess up, you get a lot of these so you can start over until you get it right. You will also still have spares left over.

easy to use. Small and light

Added one of these under the lip of an Alesis Turbo Mesh drum high hat for better sensitivity. Works like a charm. 3D printed an enclosure for a 1/4" plug (also bought through amazon)

Good Piezos, good solder joints, a couple with minor dents but no biggie.